Ceramic oxide Ceramic

Ceramic Aluminium Oxide Ceramics

Aluminum oxide (Al 2 O 3 ) has an exceptional set of properties, such as:

  • hardness;
  • good thermal conductivity;
  • excellent corrosion resistance;
  • low density.

Material

Al 2 O 3 , 95% < /span>

Al 2 O 3 , 99% < /span>

Density, g /cm 3

3.7

3.88

Porosity%

< 0.5

< 0.4

Hardness, HRC

85

88

Flexural strength, MPa

12-13

15-17

Compressive strength, MPa

2000-2300

2000-2400

Thermal conductivity at 20-100˚С, W /mK

20-25

27-28

Temperature expansion coefficient, 1 /K

5,5x10 -6

5.3x10 -6